In this article, a new technique is introduced for establishing analytical approximate solutions to conservative oscillators with strong odd nonlinearity using the variational iteration method and the Fourier series. The illustrated examples show that only a few iterations can provide very accurate approximate solutions for the whole range of oscillation amplitude even for longer time ranges.
|Number of pages||5|
|Journal||Journal of Computational and Nonlinear Dynamics|
|Early online date||23 Jul 2012|
|Publication status||Published - 1 Jan 2013|